Hey DIYers and crafters, these YMAISS flat head black box screws are seriously handy to have around! This pack gives you 90 screws with that sleek gunmetal black nickel plating that not only looks good but provides rust and corrosion resistance too. Made from high-quality carbon steel, these babies are sturdy and built to last through multiple uses. The flat head design means they sit flush with surfaces, and they work with standard screwdrivers for easy installation and removal. What's really cool is how versatile these screws are - while they're called 'book binding posts,' you can use them for so much more. Think scrapbooking, leatherworking, assembling small projects, or even for electronics enclosures. The threading gives you good tightness without being impossible to remove later, and since they're reusable, you can adjust your projects as needed. The black finish gives everything a professional, finished look that's way better than those plain silver screws. Whether you're binding reports, creating custom notebooks, or working on various craft projects, having a good supply of these on hand means you're always ready to tackle whatever comes up. The international product designation just means they meet different standards, but they work just fine for all your projects. Seriously, if you do any kind of crafting or small assembly work, these screws will become one of those supplies you wonder how you ever lived without!